Research On Grid Resources Schedule Policy Based On Credit In P2P Environment

With the rapid development of the requirement of the high-performance application, the single high-performance computer is not qualified for solving some problem of wholesale application, this require all kinds of the resources which is distributed geographically should be connected to solve this problem.Grid and P2P are distributed computing models, they have the similar purposes. Aimed at the characteristics of Grid and P2P and characteristics of distributed resources in network environment, we study the issues of combining the two technologies in order to take their advantages while overcoming the problems encountered in each field. We build twolayer model for the integration of the Grid and P2P networks, which consists of a Grid layer and an underlying P2P layer. P2P layer for underlying message routing or resource discovering and use Grid as upper layer middleware providing services. This model can increase the resource discovery efficiency and extensibility is enhanced in the Grid system.Meanwhile, we propose a scheduling strategy based on credit by introducing D-S evidence theory in this article, so security controlling has been added during allocating resource, which promotes the running efficiency and security of the grid computing system.